CH402937A - Verfahren zur Verschlüsselung von impulsförmig übertragenen Nachrichten - Google Patents

Verfahren zur Verschlüsselung von impulsförmig übertragenen Nachrichten

Info

Publication number
CH402937A
CH402937A CH964761A CH964761A CH402937A CH 402937 A CH402937 A CH 402937A CH 964761 A CH964761 A CH 964761A CH 964761 A CH964761 A CH 964761A CH 402937 A CH402937 A CH 402937A
Authority
CH
Switzerland
Prior art keywords
pulses
messages transmitted
encrypting messages
encrypting
transmitted
Prior art date
Application number
CH964761A
Other languages
German (de)
English (en)
Inventor
Ehrat Kurt
Original Assignee
Gretag Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gretag Ag filed Critical Gretag Ag
Priority to CH964761A priority Critical patent/CH402937A/de
Priority to FR906087A priority patent/FR1337485A/fr
Priority to GB30248/62A priority patent/GB951174A/en
Priority to US215674A priority patent/US3291908A/en
Priority to NL62282168A priority patent/NL142300B/xx
Priority to BE621493A priority patent/BE621493A/xx
Publication of CH402937A publication Critical patent/CH402937A/de

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • G09C1/06—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member
    • G09C1/14—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system wherein elements corresponding to the signs making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member involving removable or interchangeable coding numbers, e.g. master tapes, punched cards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/08—Randomization, e.g. dummy operations or using noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
    • H04L2209/125—Parallelization or pipelining, e.g. for accelerating processing of cryptographic operations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
CH964761A 1961-08-18 1961-08-18 Verfahren zur Verschlüsselung von impulsförmig übertragenen Nachrichten CH402937A (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH964761A CH402937A (de) 1961-08-18 1961-08-18 Verfahren zur Verschlüsselung von impulsförmig übertragenen Nachrichten
FR906087A FR1337485A (fr) 1961-08-18 1962-08-03 Procédé de chiffrage de messages
GB30248/62A GB951174A (en) 1961-08-18 1962-08-07 Method of ciphering messages
US215674A US3291908A (en) 1961-08-18 1962-08-08 Process for the coding of messages
NL62282168A NL142300B (nl) 1961-08-18 1962-08-16 Stelsel voor het coderen en decoderen van berichten.
BE621493A BE621493A (xx) 1961-08-18 1962-08-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH964761A CH402937A (de) 1961-08-18 1961-08-18 Verfahren zur Verschlüsselung von impulsförmig übertragenen Nachrichten

Publications (1)

Publication Number Publication Date
CH402937A true CH402937A (de) 1965-11-30

Family

ID=4354171

Family Applications (1)

Application Number Title Priority Date Filing Date
CH964761A CH402937A (de) 1961-08-18 1961-08-18 Verfahren zur Verschlüsselung von impulsförmig übertragenen Nachrichten

Country Status (5)

Country Link
US (1) US3291908A (xx)
BE (1) BE621493A (xx)
CH (1) CH402937A (xx)
GB (1) GB951174A (xx)
NL (1) NL142300B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1906076A1 (de) * 1968-02-23 1969-09-11 Philips Nv Zeitmultiplex-UEbertragungssystem zur UEbertragung von Signalen mit Hilfe von Pulscodemodulation
DE2455477A1 (de) * 1974-11-23 1976-05-26 Tekade Felten & Guilleaume Verfahren zur sprachverschleierung durch zeitliches vertauschen der sprachabschnitte

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431430A (en) * 1964-11-18 1969-03-04 John Tambert Automatic electric control systems
US4192967A (en) * 1966-05-26 1980-03-11 The United States Of America As Represented By The Secretary Of The Air Force Teletype mixer apparatus for coding and decoding
CH516854A (de) * 1969-11-29 1971-12-15 Ciba Geigy Ag Verfahren und Vorrichtung zur chiffrierten Übermittlung von Informationen
CH515576A (de) * 1970-08-20 1971-11-15 Hagelin Boris Caesar Wilhelm Gerät zur Ver- und Entschlüsselung von mehrstellig codierten Signalen
US3746799A (en) * 1971-09-27 1973-07-17 Us Navy Method and apparatus for encoding and decoding analog signals
US3878332A (en) * 1972-10-20 1975-04-15 Barrie O Morgan Digital crytographic system and method
US3813493A (en) * 1972-12-07 1974-05-28 P Hughes Secure data transmission apparatus
CH594261A5 (xx) * 1975-11-20 1977-12-30 Europ Handelsges Anst
US4369434A (en) * 1979-12-20 1983-01-18 Gretag Aktiengesellschaft Enciphering/deciphering system
NL183862C (nl) * 1980-02-04 1989-02-01 Philips Nv Telecommunicatiestelsel met gecodeerde berichtoverdracht.
FR2477344B1 (fr) * 1980-03-03 1986-09-19 Bull Sa Procede et systeme de transmission d'informations confidentielles
FR2480539B1 (fr) * 1980-04-09 1985-09-13 Cii Honeywell Bull Procede et systeme de transmission de messages signes
ATE15964T1 (de) * 1982-04-30 1985-10-15 British Telecomm Funkuebertragung von verschluesselten signalen.
EP0100106B1 (en) * 1982-07-28 1989-06-28 Communications Satellite Corporation Communications systems and transmitters and receivers including scrambling devices
US4707839A (en) * 1983-09-26 1987-11-17 Harris Corporation Spread spectrum correlator for recovering CCSK data from a PN spread MSK waveform
US4972474A (en) * 1989-05-01 1990-11-20 Cylink Corporation Integer encryptor
US5278905A (en) * 1992-05-13 1994-01-11 At&T Bell Laboratories Method and apparatus for processor base encryption
WO2006075869A1 (en) * 2005-01-11 2006-07-20 Samsung Electronics Co., Ltd. Apparatus and method for ciphering/deciphering a signal in a communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1906076A1 (de) * 1968-02-23 1969-09-11 Philips Nv Zeitmultiplex-UEbertragungssystem zur UEbertragung von Signalen mit Hilfe von Pulscodemodulation
DE2455477A1 (de) * 1974-11-23 1976-05-26 Tekade Felten & Guilleaume Verfahren zur sprachverschleierung durch zeitliches vertauschen der sprachabschnitte

Also Published As

Publication number Publication date
US3291908A (en) 1966-12-13
NL142300B (nl) 1974-05-15
NL282168A (xx) 1964-12-28
GB951174A (en) 1964-03-04
BE621493A (xx) 1963-02-18

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